This dimmer is specifically designed to work with many dimmable LED and CFL bulbs. See bulb compatibility list at Documentation tab.

Generally, our tests show that these CL (CFL/LED) dimmers work on DIMMABLE high quality LED bulbs, except for MR16 bulbs.

The Lutron various CFL/LED dimmers are very similar in performance, and all have low end trim control.

Credenza CL lamp dimmer has no low end trim control. It operates similar to the Diva, Skylark Contour and Ariadni, except that it is factory-set not to go as low as those wall mount dimmers because it has no low-end trim control. Lutron has made the judgment that removing the difficult low-end, with its concomitant balky behavior on some bulbs, is more important than allowing the deeper dimming available in certain circumstances on more expensive wall-mount CFL/LED or electronic dimmers.

Low-end trim control is a small pin-wheel on the front of the dimmer, easily accessible with the cover plate removed. Use it to set how low the dimmer will go. This allows you to remove any undesirable dimmer behavior at the low end, such as flicker, pop-on or drop-out. This behavior depends on bulb construction and what load is on the dimmer. By trimming the dimmer, you can tune it for your installation exactly the way you want it.

Does not require that the neutral wire run through your dimmer's gang box.